Safety razor



Nov. 10, 1931. I. w, p, GRATH 4 1,831,171

SAFETY RAZOR Filed Jan. 28, 1931 I N VEN TOR.

ATTORNEY.

Patented Nov. 10, 1931 UNITE-D s A'Tss PATE OFFICE j i WALTER r. GRATH, or 'LosANo LEs, CA IFOR IA SAFETY RAZOR Application filed January 28, 1931. Serial No. 511,735.

ore particularly it is the object of the invention to provide a movable member adapted to press forwardly and downwardly on the rear edge of the blade so that the ends of the cutting edge engage cooperating stops of the frame for securing the blade in operative position without the necessity of an overlying jaw, and the movable member being adjustable to maintain pressure against the rear edge of the blade as it is worn away in resharpening.

It is a still further object of the invention to provide for positive adjustment of the movable member in either of opposite directions so as to readily release or secure the blade in' its frame, and to position the adjusting means so that it does not hinder free manipulation of the razor and provides the proper balance for the entire structure.

Further objects of the invention will be readily understood from the following description of the accompanying drawings, in which:

Fig. 1 is a perspective view of the razor.

Fig. 2 is a rear elevation. v

Fig. 3 is a side elevation partly in vertical section.

Fig. 4 is a transverse section on the line 44 of Fig. 3.

The razor comprises a removable blade 1' adapted for mounting in a cooperating frame which has a depending handle 2, the frame being shown as side pieces 3 having depending lugs 4 at their rear ends, and connected at their forward portions by a toothed guard 5 which terminates at its rear edge in a medial lug 6 which is adapted for engagement by p the depending handle.

The blade 1 rests upon guard 5 between upstanding guides which are formed by side pieces 3, with the cutting edgeof the blade abutting against upturned stops 8 which are formed by the end teeth of the guard and the blade is held in operative position by a movable member which exerts forward and downward pressure against the rear edge of the blade so as to forceit against the stops 8 and securely hold it flat against its guard.

. The movable member is adjustable solas-to insure pressure against the rear edge of the blade as its cutting edge'is worn away, and forthis purpose the movable member is v shown as. a1'yoke10 pivoted between .side

pieces 3. at the "rear of. the frame, with up- 6.0

'standingfingers 11 of the yoke adapted. to abut against the rear edge of the razor blade, and the yoke adapted for pivotal adjustment by a suitable operating means. g i The operating means insures a balanced structure andfloffers no obstruction to free manipulation of the razor, and for this purpose preferably comprises a nut 12 engaging a cooperating threaded shank .13 at the up- W per end of, handle 2, with the nut annularly grooved at 14: intermediate .ofits ends and a forked end 15 of the swinging'yoke10 projecting inwardly from its pivotal mounting and straddling the adjusting nut at its annu- .7

The lower end of the adjusting nut is preferably knurled for manual threaded, adjustment along the shank 13, and by engaging the forked end 15 of the swinging yoke is adapted to positively'swing fingers 11in ,either o-f opposite directions so as to either disengage the razor blade for its ready removal or exert "forward and downward pressure against the blade so as to clamp it against the stops 8 for holding it in operative position.

For convenience of manufacture and assembly, the yoke 10 with its upstanding fingers 11 and its laterally projectingfork 15, is preferably an integral stamping with lips I 16 at the lower edge'of the yoke and laterally beyond fork 15 adapted to be'curved around 'a'pivot pin 17 which connects the lugs 4 of the frame so as to provide thepivotal mounting for the swinging yoke; and when operatively assembled the fork 15 is preferably substantially horizontally disposed and the yoke 10 is inclined forwardly with its upstanding fingers 11 laterally offset as shown in Fig. 3', so. that longitudinal adjustment of the operating nut provides for appreciable swinging of fingers 11 to take care of substantial decrease in the width of blade 1 as it is worn away. The depending lugs 42 and the pivotal mounting 17 are appreciably spaced rearwardly from that portion of the frame which supports the razor blade, so that when fingers 11 engage the rear edge of the blade the yoke 10 is swung forwardly beyond the vertical as shown in Fig. 3; and as a consequence further forward swinging of the yoke to maintain pressure against the rear edge of the blade as its cutting edge is worn away, will swing fingers 11 downwardly instead of upwardly as would be the case if pivotal mounting 17 were so positioned that yoke 10 had not swung forwardly beyond the vertical when in contact with'the rear edge of the blade. It will thus be seen that irrespective of the degree of swinging adjustment the forward pressure of fingers 11 is always exerted slightly downwardly for holding the blade against its guard, and that as the yoke signature. YVALTER P. GRATH.

is adjusted to compensate for wearing away ,7

of the cutting edge there: is no increase in the projection of the fingers above the blade-such ,as might interfere with free use of the razor; 'The invention thus provides e'rrtremely simple means for holding a razor blade in its frame, with a movable member adapted for positive adjustment to either release the blade or securely clampit in operative position irrespective of decrease in the width of the blade as a resultof resharpening, and the movable member and its operating means beinn; so positioned as to insure a balanced structure with no parts projecting unduly bevond the frame of the razor.

I claim: o 7 I 1. In a safety razor. a frame adapted to receive a blade, a handle depending from the frame. a member pivoted to the frame and including an upstanding portion and a fork projecting forwardlv from the mounting. the pivoted member being adapted to swing in opposite directions so that its upstanding portion respectively relieves and exerts forward pressure against the blade. and

a nut adapted for threaded adjustment along the handle and annularly groved intermediate of its ends for reception of the fork in said groove so as to positive-lvswing the pivoted member in either of its opposite directions.

2. In a safety razor. a frameadapted to receive a blade, a handledepending fromzthe pivotal frame. a member pivoted to the frame and. T

spaced below and rearwardly from that por- 'tion of the frame which supports the blade so'that the upstanding portion of the pivoted 

